I. Metal detectors function on two concepts of electricity and magnetism to detect the presence of metals. <br />II. There are different types of metal detectors such as beat frequency oscillation, very low-frequency detectors, pulse induction, and industrial metal detectors. <br />III. Metal detectors are used to find hidden metal objects or objects buried underground. <br />IV. They are also used for various purposes such as land mine detection, geological detection, airport and building security; it is also used in the construction industry to identify the steel bars within reinforced concrete. <br />V. A beat frequency oscillation metal detector is used to detect metal objects that are about two feet below ground. <br />VI. Very low-frequency detectors are used among treasure seekers and are highly accurate and sensitive. <br />VII. A pulse induction metal detector is commonly used by security guards at check points. This type of metal detector is not efficient in differentiating the different types of metal detectors. <br />VIII. The doorframe metal detector is one of the types of an industrial metal detector. They are used at airports and to secure buildings. <br /> <br />Visit Yellowpages-UAE website to know more about Metal Detectors & Body Scanners at http://www.yellowpages-uae.com/uae/dubai/metal-detector
